Niraparib in Combination with Cabozantinib (XL184) in Patients with Advanced Urothelial Cancer (NICARAGUA)

Non-randomized trial will comprise 2 stages. A dose escalation phase will characterize the safety, tolerability, DLTs and MTD, of oral niraparib plus cabozantinib in patients with urothelial or renal cell carcinoma. Subsequently, the phase II will further evaluate the safety and antitumor activity of this combination in patients with urothelial carcinoma.